A plane truss with span length L 5 4.5 m is constructed using cast iron pipes (E 5 170 GPa) with a cross-sectional area of 4500 mm2. The displacement of joint B cannot exceed 2.7 mm. The maximum value of loads P is approximately:



(A) 340 kN

(B) 460 kN

(C) 510 kN

(D) 600 kN


(B) 460 kN

Physics & Space Science

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